SU123482A1 - The method of obtaining synthetic flocta nta - Google Patents

The method of obtaining synthetic flocta nta

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Publication number
SU123482A1
SU123482A1 SU615708A SU615708A SU123482A1 SU 123482 A1 SU123482 A1 SU 123482A1 SU 615708 A SU615708 A SU 615708A SU 615708 A SU615708 A SU 615708A SU 123482 A1 SU123482 A1 SU 123482A1
Authority
SU
USSR - Soviet Union
Prior art keywords
obtaining synthetic
flocta
nta
synthetic
flocta nta
Prior art date
Application number
SU615708A
Other languages
Russian (ru)
Inventor
Л.И. Габриелова
Е.Н. Зильберман
А.Е. Куликова
А.К. Лившиц
Original Assignee
Л.И. Габриелова
Е.Н. Зильберман
А.Е. Куликова
А.К. Лившиц
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Л.И. Габриелова, Е.Н. Зильберман, А.Е. Куликова, А.К. Лившиц filed Critical Л.И. Габриелова
Priority to SU615708A priority Critical patent/SU123482A1/en
Application granted granted Critical
Publication of SU123482A1 publication Critical patent/SU123482A1/en

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Description

В насто щее врем  синтетический флокул нт - гидролизованный полиакрилонитрил получают путем неполного щелочного гидролиза полиакрилонитрила .At present, synthetic flocculation - hydrolyzed polyacrylonitrile is obtained by partial alkaline hydrolysis of polyacrylonitrile.

Предлагаемый способ получени  синтетического флокул нта отличаетс  ОТ известных тем, что в качестве катализатора примен ют металлическую медь. При ЭТОМ в 3-4 раза сокращаетс  врем , потребное дл  осуществлени  процесса гидролиза и обеспечиваетс  возврат в производство порощка металлической меди, что значительно снижает себестоимость ГОТОВОЙ продукции.The proposed method for producing synthetic flocculant differs from known ones in that metallic copper is used as a catalyst. At IT, the time required for the hydrolysis process is reduced by a factor of 3–4 and the metallic copper powder is returned to production, which significantly reduces the cost of the FINISHED products.

Дл  осуществлени  предлагаемого способа 10 вес. ч. измельченного полинака помещают в круглодонную колбу с мещалкой и обратным холодильником . Туда же добавл ют раствор щелочи и воду (4 вес. ч. NaOH и 260 вес. ч. воды) и 0,02 вес. ч. порошкообразной меди. Смесь кип т т в течение 2,5 час., охлаждают и примен ют в качестве флокул нта; в зкость его должна равн тьс  5, а содержание азота в сухом продукте - 20-22 %.To implement the proposed method 10 weight. including crushed polink is placed in a round-bottom flask with a meschalka and reflux condenser. Alkali solution and water (4 parts by weight of NaOH and 260 parts by weight of water) and 0.02 weight. including powdered copper. The mixture is boiled for 2.5 hours, cooled and used as flocculant; its viscosity should be 5, and the nitrogen content in the dry product should be 20-22%.

Дл  получени  сухого продукта можно примен ть различные методы , например, распылительную сушку, осаждение метанолом и др. При осаждении метаноло.м полученный указанным выще способом раствор выливают в 10-кратное количество метилового спирта; выпавп1ий полимер расчлен ют на кусочки и высущивают на воздухе.Various methods can be used to obtain a dry product, for example, spray drying, precipitation with methanol, etc. When methanol is precipitated, the solution obtained by the above method is poured into 10-fold amount of methyl alcohol; The loose polymer is dissected into pieces and air-dried.

При увеличении количества щелочи в процессе гидролиза можно получать продукты гидролиза с меньщим содержанием азота. Эти продукты менее в зки и, как правило, менее эффективны.By increasing the amount of alkali in the process of hydrolysis, you can get the products of hydrolysis with a lower nitrogen content. These products are less viscous and are generally less effective.

Предмет изобретени Subject invention

Спасоб получени  синтетическото флокул нта - гидролизованного иолиакрилонитрила путем неполного щелочного гидролиза полиакрилони-трила , отличающийс  тем, что в качестве катализатора примен ют металлическую медь.Rescuing the production of synthetic flocculate hydrolyzed acyl acrylonitrile by partial alkaline hydrolysis of polyacrylonyl-triline, characterized in that metallic copper is used as a catalyst.

SU615708A 1959-01-05 1959-01-05 The method of obtaining synthetic flocta nta SU123482A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
SU615708A SU123482A1 (en) 1959-01-05 1959-01-05 The method of obtaining synthetic flocta nta

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
SU615708A SU123482A1 (en) 1959-01-05 1959-01-05 The method of obtaining synthetic flocta nta

Publications (1)

Publication Number Publication Date
SU123482A1 true SU123482A1 (en) 1959-11-30

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Family Applications (1)

Application Number Title Priority Date Filing Date
SU615708A SU123482A1 (en) 1959-01-05 1959-01-05 The method of obtaining synthetic flocta nta

Country Status (1)

Country Link
SU (1) SU123482A1 (en)

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